Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba025b5f93f32882…

MALICIOUS

PDF

75.4 KB Created: 2021-03-04 14:29:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 7df45f77990c5c3d619a8c96c538a1fb SHA-1: fbd99365121c2420066220bc0206bddc19d7c49e SHA-256: ba025b5f93f3288289b4f1420e8b95114f40c8a7fdf1285df74591691a6e8103
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to 'ethical hacking'. The presence of numerous external links suggests a link farm or phishing attempt to direct users to malicious infrastructure. No scripts were extracted, but the PDF structure and link farm heuristics strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://crophysi.ru/aws?utm_term=how+to+learn+ethical+hacking+online+free+in+hindi In PDF document text
    • http://fuxokubatasiju.22web.org/best_dance_music_2020_playlist.pdfIn PDF document text
    • http://replyua.site/4435457838292p9y.pdfIn PDF document text
    • http://uablog.website/97758296119om17q.pdfIn PDF document text
    • http://testrun.ru/50967728809g3s04.pdfIn PDF document text
    • http://bbbbbbbbeeee.space/raliveputikaxdgzm6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://d9226533-59f4-4737-ae77-cfa9cdee5378.filesusr.com/ugd/d7c203_a6c0e8addbc0490bb9a20e13d7211fa3.pdf?index=trueIn PDF document text
    • http://vadibezodaxilez.rf.gd/ironman_70._3_waco_athlete_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/adtm_full_form.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/xuremozatafokinotafelake.pdfIn PDF document text
    • http://mulumibapetemom.epizy.com/informatieplicht_bestuursorgaan_awb.pdfIn PDF document text
    • http://rubabup.epizy.com/9281167146.pdfIn PDF document text
    • https://a7193630-a032-4ee2-b136-33837135b76a.filesusr.com/ugd/fac845_00b3fec995da479eb8527dabbf7bb24f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/is_its_kind_of_a_funny_story_on_netflix.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/mekerodugeriz.pdfIn PDF document text
    • http://juzopixakaj.epizy.com/capteur_de_temprature_ctn.pdfIn PDF document text
    • https://a6132035-7465-4fe4-be4e-2faa96c22dab.filesusr.com/ugd/cf950b_f7c4d77982074f799fff296b37b8856a.pdf?index=trueIn PDF document text
    • https://1a2149e7-ca7f-4e7c-a584-0e483de6f3af.filesusr.com/ugd/9219f8_447e8bd92a3d4d119f7d723a06b52546.pdf?index=trueIn PDF document text
    • https://34886cf3-15ed-44db-93e8-8979dc7c4cd7.filesusr.com/ugd/ea2c45_e34897326b2f40cd88198fe590923ecd.pdf?index=trueIn PDF document text
    • http://kuxixatizoxop.epizy.com/django_auth_form_css.pdfIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/isosceles_triangle_worksheet_1_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/soxubuwipajulawidajano.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e880.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE880 5224 bytes
SHA-256: e4e5e4108a7ecfbb0f3fcf06ac5cd85a40fee23e0d83de312473006d4c7d3552
font_01_sfnt_off0000fa4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA4E 11084 bytes
SHA-256: a62377f89a9ea2df91fac4d3ce3b41dab7afc36cad486117878d025d985afa14

Open this report in the interactive analyzer, or submit your own file for analysis.